The temperature at which a solid substance gets converted into liquid after receiving heat is called

The correct answer is option [B] Melting point. The melting point is the temperature at which a solid substance transitions into its liquid state when heat is applied. At this temperature, the solid’s internal structure breaks down, allowing its particles to move freely and assume the liquid state. Options [A] Boiling point and [C] Evaporation refer to processes involving liquid substances, not solids. Therefore, option [B] Melting point accurately describes the temperature associated with the solid-to-liquid phase transition. Option [D] None of these is incorrect, as melting point specifically denotes this transition.